1 files changed, 9 insertions, 0 deletions
diff --git a/src/math/x86_64/remainderl.c b/src/math/x86_64/remainderl.c
new file mode 100644
index 00000000..8cf75071
--- /dev/null
+++ b/src/math/x86_64/remainderl.c
@@ -0,0 +1,9 @@
+#include <math.h>
+
+long double remainderl(long double x, long double y)
+{
+	unsigned short fpsr;
+	do __asm__ ("fprem1; fnstsw %%ax" : "+t"(x), "=a"(fpsr) : "u"(y));
+	while (fpsr & 0x400);
+	return x;
+}